Can a power cord increase the resolution of an Class D (SMPS) amp by more than 5% ?

geoffkait

You have lost us with this quote!

Electrons are only charge carriers. The signal, the thing traveling through wire at super high speed, is photons. Pop quiz: do photons have mass? Maybe you should get your money back from the high school you went to, with your friends.

How in the world does a particle of light ie a  photon, have anything to do with a electircal wire??  How would a particle of light move on a wire??

Do me a favor, go up to your local Home Depot and visit the wire department and ask them for some "directional" wire for your 15 or 20 amp circuit, see what they say??

geoffkait

Share with us the physics of how a photon, a particle of light transfers on a wire medium?  Also, please share with us the college that taught you this amazing fact of physics!

To answer this question, photons are the energy-packets that carry the light energy. Beams of light are made up of photons

Although photons are most commonly thought of in the context of light waves, which are a form of electromagnetic wave, they comprise all forms of electromagnetic waves. As stated in the Wikipedia writeup on "Electromagnetic Radiation":

In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays.

However, in contrast to assertions Geoff has made in some past threads, in the case of electrical signals being conducted via wires the electromagnetic waves which convey the energy of those signals from source to destination, and which are comprised of photons, and which propagate at a substantial fraction of the speed of light in a vacuum (in contrast to the vastly slower movement of electrons), DO NOT travel within the conductors. They travel primarily within the dielectric (i.e., the insulating material) surrounding the conductors.

A consequence of that is that the propagation velocity of signals being conducted by various cables depends mainly on the "dielectric constant" (aka "relative permittivity") of the insulation that is used in the particular cable, the variation typically being within a range of 50% to 95% or so of the speed of light in a vacuum. As stated in the Wikipedia writeup on "Velocity Factor":

In electrical cables, the velocity factor mainly depends on the insulating material ....

VF equals the reciprocal of the square root of the dielectric constant (relative permittivity) ... of the material through which the signal passes.

Regards,
-- Al